Fronius Robacta MTG 2500 - Page 42

Contact tip has a short service life
Incorrect wirefeeder rollers
Use correct wirefeeder rollers
Wire electrode worn due to excessive contact pressure on the wire-
feeder rollers
Reduce contact pressure on the wirefeeder rollers
Wire electrode contains impurities/is corroded
Use high-quality wire electrode with no impurities
Uncoated wire electrode
Use wire electrode with suitable coating
Wrong dimension of contact tip
Use a contact tip of the correct dimension
Duty cycle of welding torch has been exceeded
Shorten the duty cycle or use a more powerful welding torch
Contact tip has overheated. No thermal dissipation as the contact tip
is too loose
Tighten the contact tip
NOTE!
When using CrNi, the contact tip may be subject to a higher degree of wear due
to the nature of the surface of the CrNi wire electrode.
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